| 硅烷偶联剂改善新老混凝土修补界面层机理初探 |
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| 引用本文： | 熊光晶,李毅强,罗白云,邬翔.硅烷偶联剂改善新老混凝土修补界面层机理初探[J].工业建筑,2005,35(9):105-106. |
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| 作者姓名： | 熊光晶 李毅强 罗白云 邬翔 |
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| 作者单位： | 汕头大学,土木系,汕头,515063;汕头大学,土木系,汕头,515063;汕头大学,土木系,汕头,515063;汕头大学,土木系,汕头,515063 |
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| 基金项目： | 国家自然科学基金资助项目（编号：50278050）. |
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| 摘 要： | 对比试验表明,以硅烷偶联剂溶液涂老混凝土表面,可使新老混凝土修补界面层粘结强度显著提高。初步提出改性机理解释这一现象:硅烷偶联剂很可能使水泥石表面与花岗岩(或老砂浆)表面实现了大范围化学键接。
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| 关 键 词： | 硅烷偶联剂 化学键接 粘结强度 花岗石 混凝土 |
| 收稿时间： | 12 20 2004 12:00AM |
| 修稿时间： | 2004年12月20 |
PRIMARY INVESTIGATION ON MODIFYING MECHANISM OF NEW TO OLD CONCRETE REPAIR INTERFACIAL LAYER BY USING SILANE COUPLING AGENT |
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| Xiong Guangjing,Li Yiqiang,Luo Baiyun,Wu Xiang.PRIMARY INVESTIGATION ON MODIFYING MECHANISM OF NEW TO OLD CONCRETE REPAIR INTERFACIAL LAYER BY USING SILANE COUPLING AGENT[J].Industrial Construction,2005,35(9):105-106. |
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| Authors: | Xiong Guangjing Li Yiqiang Luo Baiyun Wu Xiang |
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| Abstract: | A comparative experimental study showed that silane coupling agent solution can significantly increase the bond strength of new to old concrete repair interfacial layer. A primary modifying mechanism for explaining this phenomenon is proposed: it is possible for silane coupling agent to create many chemical bonds between cement paste surface and granite (old mortar) surface. |
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| Keywords: | silane coupling agent chemical bond bond strength granite concrete |
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